Texas Instruments TLE2021IDR

Overview

TLE2021IDR from Texas Instruments is a single-channel, precision operational amplifier using the Excalibur bipolar process, delivering 2 MHz unity-gain bandwidth, 0.65 V/µs slew rate, and 100 µV max input offset voltage over –55°C to +125°C. It operates from ±15 V or 5 V single supply and features phase-reversal protection and rail-to-rail common-mode input range extending to the negative rail-ideal for low-level signal conditioning in military-grade sensor interfaces and precision data acquisition systems.

For engineers reviewing the TLE2021IDR datasheet, TLE2021IDR pinout, TLE2021IDR application, or TLE2021IDR equivalent, key selection criteria include its military-temperature-rated precision (100 µV V_IO, 2 µV/°C drift), ultra-low 300 µA supply current, 19 nV/√Hz input noise, and guaranteed operation with inputs driven below the negative rail-critical for high-stability analog front-ends in avionics and test equipment.

Technical Context

The TLE2021IDR employs Texas Instruments' Excalibur complementary bipolar process with isolated vertical PNP transistors, enabling simultaneous high-speed performance (2 MHz GBW, 0.65 V/µs SR) and precision DC characteristics (6.5 V/µV open-loop gain, 136 dB). Its bias circuit ensures exceptional stability over time (<0.005 µV/month drift) and temperature (±10 µA ΔI_CC across –55°C to +125°C).

Phase-reversal protection prevents output inversion when either input falls below the negative supply rail-a critical safeguard in single-supply configurations with ground-referenced sensors. The device supports both split-supply (±15 V) and single-supply (5 V) operation while maintaining full common-mode input range down to V_CC–, enabling direct interfacing with low-voltage transducers without level-shifting.

Key Specifications

Pinout & Package

Package: SOIC-8 (D package), 150 mil width, surface-mount, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision operational amplifier applications.

Compared with OPA227UA and LMC6061IMX, the TLE2021IDR uniquely balances military-temperature operation, ultra-low power (300 µA), and robust phase-reversal protection-making it irreplaceable in space-constrained, low-power, high-reliability analog signal chains where input overdrive below ground is routine.

Availability

TLE2021IDR is available at Aetrix Electronics and suitable for avionics sensor interfaces, portable medical diagnostics, and industrial process transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLE2021IDR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with over 90 years of innovation in high-reliability analog ICs.

The TLE202xM family was engineered for military, aerospace, and industrial applications demanding precision, speed, and extreme temperature resilience-leveraging Excalibur process technology to overcome traditional trade-offs between bandwidth, power, and DC accuracy.

FAQ

What is the maximum operating temperature range for the TLE2021IDR?

The TLE2021IDR is characterized for continuous operation from –55°C to +125°C, meeting MIL-STD-883 Class B requirements. This full military temperature range is validated across all electrical parameters-including supply current change (≤10 µA), input offset voltage (≤1000 µV), and open-loop gain-with no derating required.

Does the TLE2021IDR support single-supply operation?

Yes, the TLE2021IDR is fully specified for 5 V single-supply operation with a common-mode input voltage range extending to the negative rail (0 V). Its phase-reversal protection remains active, preventing output inversion when inputs fall below GND-enabling direct interfacing with grounded sensors without external clamping.

What is the purpose of Pins 1 and 5 on the TLE2021IDR?

Pins 1 and 5 are offset null terminals used to connect an external 10-kΩ potentiometer for manual trimming of input offset voltage. While the TLE2021IDR's 100 µV max V_IO often eliminates the need for trimming, these pins provide calibration flexibility in ultra-high-accuracy applications such as precision weigh scales or metrology equipment.

How does the TLE2021IDR's Excalibur process improve performance over standard bipolar op-amps?

The Excalibur process uses isolated vertical PNP transistors to achieve 2 MHz unity-gain bandwidth and 0.65 V/µs slew rate-double that of legacy OP21-while maintaining 6.5 V/µV open-loop gain and 100 µV offset. This eliminates the traditional speed-vs-precision trade-off, enabling high-fidelity amplification of fast, low-amplitude signals in real-time control loops.

Is the TLE2021IDR pin-compatible with other SOIC-8 op-amps like the LM358?

No, the TLE2021IDR is not pin-compatible with LM358 or generic dual op-amps. Its SOIC-8 pinout (with dedicated offset-null pins and NC on Pin 8) follows TI's precision op-amp layout standard. Substitution requires PCB layout revision; however, its D-package footprint is identical to industry-standard SOIC-8, simplifying mechanical integration.